How popular is Suze?

Suze is an uncommonly occurring given name for females. Suze is also an uncommon last name for both adults and children. (2000 U.S. Census)

Which version is better?

with its source forms and related girl names. Susan(#929 in 2015), Suzi, Suzette, Suzie, Suzy, Suzanne, Susie, Sudie, Sue, Susannah, San and Suzan are the popular variation forms of Suze (unlisted) rated in the Top 2000. Adoption of these forms of Suze was widespread in the 1950s (average #945) and has become significantly less since, with versions like Susan becoming somewhat outmoded. (2015 U.S. SSA Records)